Parent map or linked maps

Be able to have a 'parent' map - maybe even just a top-down image - for a town or an area, with clickable icons/images that would link to another map. For example, a shop area, a tavern, guard tower, and residential houses could be in different parts of a city map, ready to be opened.
Could even incorporate generating a new linked map on the fly based on choosing terrain and/or shop/house/dungeon motif (once autogen dungeons are incorporated)